package hsh.xun;
import java.util.Scanner;
public class yhsj {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入行数：");
        int row = sc.nextInt();
        int [][] arr = new int[row][row];
        for (int i = 0 ; i <row; i++){
            for(int j = 0; j <= i; j++){
                if (j == 0 || j == i){
                    arr[i][j] = 1;
                }
                else{
                    arr[i][j] = arr[i-1][j-1]+arr[i-1][j];
                }
                System.out.print(arr[i][j]+"");
            }
            System.out.println();
        }
    }
}
